Raymond Toy pushed to branch rtoy-xoro-default at cmucl / cmucl Commits: 58f107b1 by Raymond Toy at 2017-12-28T12:26:31-08:00 Print random state in hex Add comment for %random-double-float to use xoroshiro-gen directly instead of random-chunk twice. A minor micro optimization. - - - - - 1 changed file: - src/code/rand-xoroshiro.lisp Changes: ===================================== src/code/rand-xoroshiro.lisp ===================================== --- a/src/code/rand-xoroshiro.lisp +++ b/src/code/rand-xoroshiro.lisp @@ -155,10 +155,12 @@ (double-float-bits x) (logior (ash (ldb (byte 32 0) hi) 32) lo)))) - (prin1 (make-array 2 :element-type '(unsigned-byte 64) + (write (make-array 2 :element-type '(unsigned-byte 64) :initial-contents (list (c (aref state 0)) (c (aref state 1)))) - stream))) + :stream stream + :base 16 + :radix t))) (write-char #\space stream) (pprint-newline :linear stream) @@ -387,6 +389,9 @@ (defun %random-double-float (arg state) (declare (type (double-float (0d0)) arg) (type random-state state)) + ;; xoroshiro-gen produces 64-bit values. Should we use that + ;; directly to get the random bits instead of two calls to + ;; RANDOM-CHUNK? (* arg (- (lisp::make-double-float (dpb (ash (random-chunk state) View it on GitLab: https://gitlab.common-lisp.net/cmucl/cmucl/commit/58f107b1c475acf59797b016f0... --- View it on GitLab: https://gitlab.common-lisp.net/cmucl/cmucl/commit/58f107b1c475acf59797b016f0... You're receiving this email because of your account on gitlab.common-lisp.net.